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When the input voltage difference is small in magnitude, the Op-amp behaves as ____________

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When the input voltage difference is small in magnitude, the Op-amp behaves as ____________

(a) Non-linear device

(b) Linear device

(c) Complex device

(d) Bipolar device

I had been asked this question during an online exam.

Enquiry is from Operational Amplifier Terminals,Terminal Voltages and Currents in division The Operational Amplifier of Electric Circuits

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The correct choice is (b) Linear device

To explain: When │vp-vn│is small then Op-amp acts as a linear device as the output voltage is a linear function of input voltages.

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